HP StorageWorks MSA 2.8 SAN Switch - Manual (Page 76)

Firmware Download
76 Fabric OS Procedures Version 3.1.x/4.1.x User Guide
About Firmware Downloads
The following sections help one understand the firmware upgrade process.
Understanding the Dual-CP Firmware Upgrade Process
The 4.1 version of firmware offers a non-disruptive firmware download process
for the SAN Switch 2/32 and the Core Switch 2/64 dual-CP switch.
The following process describes the default behavior of the
firmwaredownload command on a Core Switch 2/64 dual CP when no
options are used. Refer to “ Upgrading the Firmware Using the CLI ” on page 88 or
' Upgrading the Firmware on the Core Switch 2/64 ” on page 80 for instructions.
1. The firmwaredownload command is executed. Step 1 is executed on the
active CP by the operator. Steps 2 through 6 are done automatically for the
operator.
2. Firmware download is done on the standby CP first.
3. The Standby CP forces a failover.
4. Firmware download is completed on the new standby CP.
5. The new standby is rebooted.
6. The firmwareCommit is executed on both CPs.
7. The firmwaredownloadstatus command shows the firmware
process.
8. The entire firmware activation process may take 20-25 minutes.
9. If there is a problem, wait for the timeout. By design, partitions will be made
equal in the event of a firmware download failure.
If an error is encountered during the firmwaredownload (such as an
unexpected power outage), the command will ensure that both partitions of a
CP contain the same version of firmware. However, partitions in a different
CP may contain different versions of firmware. In that event, rerun the
firmware download command.